Question

A plastic box 1.5 m long, 1.25 m wide and 65 cm deep is to be made. It is opened at the
top. Ignoring the thickness of the plastic sheet, determine:
1) The area of the sheet required for making the box.
(i) The cost of sheet for it, if a sheet measuring 1m² costs Rs 20.​

Answer 1

Answer:

LSA or CSA of cuboid+ L*B(area of base)

2h(l+b)+l×b

2(65)(150+125)+150*125

73250cm^2 of sheet is required